Frankie is the plush bunny that appears in Dead End 1-13 in Paper Lily: Chapter 1.
Frankie will sit idly in the facility's main area when Lacie and Sai return after defeating Miss Knives. Upon approaching it, Sai calls it an abomination because this fucker has never. Looked in the mirror before apparently and frankie ficking eats lacie and sai the end